They were not sent to protect Iraqis they were there to protect Kuwaiti oil tankers and keep the Strait of Hormuz open.
I know that you and Saddam have a tendency to think that Kuwaiti is part of Iraq but they are separate countries.
Do you have any more faux-history you would like to pull out?
Iraq was allowed to put Kuwaiti and other foreign flags on Iraqi tankers.
I will remind you another detail. Do you remember how USS Stark was attacked by Iraq on May 17 1987 what resulted in 37 deaths? Somehow the bias against Iran was so strong that this attack was disregarded. Don't you find this amazing?
Now if the USS Stark was sunk without survivors, how likely is that Iran would be blamed?